WATER OPERATOR (NEW MEXICO) CERTIFICATION LEVEL 3
STUDY GUIDE QUESTIONS WITH ACCURATE ANSWERS
1) What is MCL? -- Answer ✔✔ Maximum Contaminant Level (MCL)
2) Which bacteria are found only in surface water supplies? -- Answer ✔✔
Cryptosporidium & Giardia
3) What must be done on a sample form to identify a Bac-T sample is from a well and
is not a compliance sample? -- Answer ✔✔ Checking Special Sample on the form
and identifying the type of sample in the Remarks line
4) How soon must NMED be notified that a Bacterial MCL has been exceeded? --
Answer ✔✔ 24 hours
5) what is an indicator organism -- Answer ✔✔ Coliform group
6) what are the waterborne pathogens found in all water supplies? -- Answer ✔✔
Typhoid , Cholera , Dysentery , Hepatitis , Paratyphoid (types A & B)
, 7) what is pathogens -- Answer ✔✔ Disease causing Bacteria
8) Water is called the ______ solvent? -- Answer ✔✔ Universal
9) What are the two sources of water ? -- Answer ✔✔ Ground & Surface
10) What is the word used to identify water that is safe to drink? -- Answer ✔✔
Potable
11) Water cycles from the atmosphere to the earth and back to the atmosphere. what
is this natural water cycle called? -- Answer ✔✔ Hydrologic Cycle
12) As part of the normal water cycle water is lost, or given up, to the atmosphere by
trees and by evaporation from the surface of streams, lakes and oceans. This
combined loss is called? -- Answer ✔✔ Evapotranspiration
13) What is meant by Disinfection? -- Answer ✔✔ Destruction of Pathogens
14) What are some of the uses from chlorine other than Disinfection? -- Answer ✔✔
Removal of Iron & Manganese some kinds of Taste & Odors, and some dissolved
gases, such as Ammonia and Hydrogen Sulfide
15) What are Trihalomethanes? -- Answer ✔✔ byproducts of drinking water
chlorination. these byproducts form when chlorine reacts with dissolved natural
organic matter, mostly plant life
STUDY GUIDE QUESTIONS WITH ACCURATE ANSWERS
1) What is MCL? -- Answer ✔✔ Maximum Contaminant Level (MCL)
2) Which bacteria are found only in surface water supplies? -- Answer ✔✔
Cryptosporidium & Giardia
3) What must be done on a sample form to identify a Bac-T sample is from a well and
is not a compliance sample? -- Answer ✔✔ Checking Special Sample on the form
and identifying the type of sample in the Remarks line
4) How soon must NMED be notified that a Bacterial MCL has been exceeded? --
Answer ✔✔ 24 hours
5) what is an indicator organism -- Answer ✔✔ Coliform group
6) what are the waterborne pathogens found in all water supplies? -- Answer ✔✔
Typhoid , Cholera , Dysentery , Hepatitis , Paratyphoid (types A & B)
, 7) what is pathogens -- Answer ✔✔ Disease causing Bacteria
8) Water is called the ______ solvent? -- Answer ✔✔ Universal
9) What are the two sources of water ? -- Answer ✔✔ Ground & Surface
10) What is the word used to identify water that is safe to drink? -- Answer ✔✔
Potable
11) Water cycles from the atmosphere to the earth and back to the atmosphere. what
is this natural water cycle called? -- Answer ✔✔ Hydrologic Cycle
12) As part of the normal water cycle water is lost, or given up, to the atmosphere by
trees and by evaporation from the surface of streams, lakes and oceans. This
combined loss is called? -- Answer ✔✔ Evapotranspiration
13) What is meant by Disinfection? -- Answer ✔✔ Destruction of Pathogens
14) What are some of the uses from chlorine other than Disinfection? -- Answer ✔✔
Removal of Iron & Manganese some kinds of Taste & Odors, and some dissolved
gases, such as Ammonia and Hydrogen Sulfide
15) What are Trihalomethanes? -- Answer ✔✔ byproducts of drinking water
chlorination. these byproducts form when chlorine reacts with dissolved natural
organic matter, mostly plant life
